title: Lysinibacillus tabacifolii sp. nov., a novel endophytic bacterium isolated from Nicotiana tabacum leaves.
abstract: A Gram-positive, catalase- and oxidase-positive, strictly aerobic, endospore-forming rod bacterium, designated K3514(T), was isolated from the leaves of Nicotiana tabacum. The strain was able to grow at temperatures of 8-40°C, pH 5.0-10.0 and NaCl concentrations of 0-7%. The predominant quinones (>30%) of this strain were MK-7(H2) and MK-7. Phylogenetic analysis of 16S rRNA gene sequence showed that strain K3514(T) was affiliated to the genus Lysinibacillus, with its closest relatives being Lysinibacillus mangiferihumi (98.3% sequence similarity), Lysinibacillus sphaericus (97.9% sequence similarity), Lysinibacillus fusiformis (97.4% sequence similarity), and Lysinibacillus xylanilyticus (97.3% sequence similarity). However, low levels of DNA-DNA relatedness values suggested that the isolate was distinct from the other closest Lysinibacillus species. Additionally, based on analysis of morphological, physiological, and biochemical characteristics, the isolate could be differentiated from the closest known relatives. Therefore, based on polyphasic taxonomic data, the novel isolate likely represents a novel species, for which the name Lysinibacillus tabacifolii sp. nov. and the type strain K3514(T) (=KCTC 33042(T) =CCTCC AB 2012050(T)) are proposed.
authors.affiliation: Technology Center of Hongyun Honghe Tobacco Group Co, Ltd, Kunming 650202, PR China.
authors.forename: Yan-Qing
authors.initials: YQ
authors.lastname: Duan
authors.forename: Song-Tao
authors.initials: ST
authors.lastname: He
authors.forename: Qing-Qing
authors.initials: QQ
authors.lastname: Li
authors.forename: Ming-Feng
authors.initials: MF
authors.lastname: Wang
authors.forename: Wen-Yuan
authors.initials: WY
authors.lastname: Wang
authors.forename: Wei
authors.initials: W
authors.lastname: Zhe
authors.forename: Yong-Hong
authors.initials: YH
authors.lastname: Cao
authors.forename: Ming-He
authors.initials: MH
authors.lastname: Mo
authors.forename: Yu-Long
authors.initials: YL
authors.lastname: Zhai
authors.forename: Wen-Jun
authors.initials: WJ
authors.lastname: Li
mesh_terms: D001406:Bacillaceae / Q000145:classification / Q000235:genetics*; D020459:Genes, rRNA / Q000235:genetics; D010802:Phylogeny; D018515:Plant Leaves / Q000382:microbiology*; D014026:Nicotiana / Q000382:microbiology*